EP0899767A3 - Cathode-ray tube - Google Patents

Cathode-ray tube Download PDF

Info

Publication number
EP0899767A3
EP0899767A3 EP98115501A EP98115501A EP0899767A3 EP 0899767 A3 EP0899767 A3 EP 0899767A3 EP 98115501 A EP98115501 A EP 98115501A EP 98115501 A EP98115501 A EP 98115501A EP 0899767 A3 EP0899767 A3 EP 0899767A3
Authority
EP
European Patent Office
Prior art keywords
panel
face
electron
cathode
ray tube
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
EP98115501A
Other languages
German (de)
French (fr)
Other versions
EP0899767A2 (en
Inventor
Satoru Nakagawa
Yoji Yamamoto
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Panasonic Holdings Corp
Original Assignee
Matsushita Electric Industrial Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Matsushita Electric Industrial Co Ltd filed Critical Matsushita Electric Industrial Co Ltd
Publication of EP0899767A2 publication Critical patent/EP0899767A2/en
Publication of EP0899767A3 publication Critical patent/EP0899767A3/en
Withdrawn legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J29/00—Details of cathode-ray tubes or of electron-beam tubes of the types covered by group H01J31/00
    • H01J29/46—Arrangements of electrodes and associated parts for generating or controlling the ray or beam, e.g. electron-optical arrangement
    • H01J29/48—Electron guns
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J29/00—Details of cathode-ray tubes or of electron-beam tubes of the types covered by group H01J31/00
    • H01J29/02—Electrodes; Screens; Mounting, supporting, spacing or insulating thereof
    • H01J29/04—Cathodes
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J29/00—Details of cathode-ray tubes or of electron-beam tubes of the types covered by group H01J31/00
    • H01J29/46—Arrangements of electrodes and associated parts for generating or controlling the ray or beam, e.g. electron-optical arrangement
    • H01J29/48—Electron guns
    • H01J29/50—Electron guns two or more guns in a single vacuum space, e.g. for plural-ray tube
    • H01J29/503—Three or more guns, the axes of which lay in a common plane
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J2229/00—Details of cathode ray tubes or electron beam tubes
    • H01J2229/48—Electron guns
    • H01J2229/50—Plurality of guns or beams
    • H01J2229/507—Multi-beam groups, e.g. number of beams greater than number of cathodes

Abstract

A cathode-ray tube with high image quality in which electron beams with higher current density than the electron-emitting ability of cathodes are formed and a driving voltage of the cathodes can be decreased. A cathode-ray tube (1) comprises a glass face-panel (3), a glass funnel (4) connected to the rear part of the face-panel (3), and an electron gun (6) for emitting electron beams (5) that is contained in a neck portion (7) of the funnel (4). On the peripheral surface of the funnel (4), a deflection yoke (13) for deflecting the electron beams (5) emitted from the electron gun (6) is mounted. A phosphor dot (2a) for 3 colors of red, green and blue is applied on the inner surface of the face-panel (3), thus forming a phosphor screen surface (2). In the vicinity of the inner surface of the face-panel (3), a shadow mask (14) is arranged substantially in parallel with the phosphor screen surface (2). Between the phosphor screen surface (2) of the face-panel (3) and the cathodes (9R, 9G and 9B) in the electron gun (6), a means (8) for superimposing a plurality of electron beams (5R, 5G and 5B) on the predetermined phosphor dot (2a) is provided.
EP98115501A 1997-08-27 1998-08-18 Cathode-ray tube Withdrawn EP0899767A3 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
JP230606/97 1997-08-27
JP9230606A JPH1167121A (en) 1997-08-27 1997-08-27 Cathode-ray tube
JP23060697 1997-08-27

Publications (2)

Publication Number Publication Date
EP0899767A2 EP0899767A2 (en) 1999-03-03
EP0899767A3 true EP0899767A3 (en) 2003-01-22

Family

ID=16910397

Family Applications (1)

Application Number Title Priority Date Filing Date
EP98115501A Withdrawn EP0899767A3 (en) 1997-08-27 1998-08-18 Cathode-ray tube

Country Status (6)

Country Link
US (1) US6201345B1 (en)
EP (1) EP0899767A3 (en)
JP (1) JPH1167121A (en)
KR (1) KR100268704B1 (en)
CN (1) CN1244129C (en)
TW (1) TW381288B (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2000311624A (en) 1999-02-24 2000-11-07 Sony Corp Inline type electron gun, color cathode-ray tube, and display device using the same
CN1395740A (en) * 2000-11-21 2003-02-05 三菱电机株式会社 Cathode ray tube
KR100418934B1 (en) * 2002-02-28 2004-02-14 엘지.필립스디스플레이(주) Gun for Color CRT
US20110184229A1 (en) * 2009-05-01 2011-07-28 Allergan, Inc. Laparoscopic gastric band with active agents
KR101590230B1 (en) * 2013-12-04 2016-02-01 창원대학교 산학협력단 Programmable low-pass filter and ac-motor control system using the same

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3286113A (en) * 1961-11-20 1966-11-15 Rca Corp Cathode ray tube
GB1195598A (en) * 1967-01-14 1970-06-17 Sony Corp Cathode Ray Tube
US3638065A (en) * 1968-12-24 1972-01-25 Victor Company Of Japan Color television picture-reproducing device
US4760308A (en) * 1980-10-03 1988-07-26 Hitachi, Ltd. Electron gun for color picture tubes
GB2227911A (en) * 1988-12-10 1990-08-08 Ferranti Int Signal CRT brightness enhanced by multiple beams

Family Cites Families (28)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5521832A (en) 1978-07-31 1980-02-16 Matsushita Electronics Corp Electron gun for color picture tube
JPS55141051A (en) 1979-04-23 1980-11-04 Matsushita Electronics Corp Electron gun for color picture tube
JPS5738544A (en) 1980-08-19 1982-03-03 Matsushita Electronics Corp Electromagnetic deflection system picture tube system equipment
JPS59111237A (en) 1982-12-16 1984-06-27 Matsushita Electronics Corp Cathode ray tube device
US4833364A (en) * 1984-04-04 1989-05-23 Hitachi, Ltd. Electron gun for color picture tubes having uniquely formed lens apertures
JPS6199249A (en) 1984-10-18 1986-05-17 Matsushita Electronics Corp Picture tube apparatus
CA1270890A (en) 1985-07-19 1990-06-26 Keiji Watanabe Cathode for electron tube
NL8600117A (en) * 1986-01-21 1987-08-17 Philips Nv COLOR IMAGE TUBE WITH REDUCED DEFLECTION DEFOCUSING.
EP0241218B1 (en) 1986-04-03 1991-12-18 Mitsubishi Denki Kabushiki Kaisha Cathode ray tube apparatus
EP0283904B1 (en) 1987-03-16 1991-05-22 Kabushiki Kaisha Toshiba Color cathode ray tube apparatus
NL8800194A (en) 1988-01-27 1989-08-16 Philips Nv CATHED BEAM TUBE.
JP2645061B2 (en) 1988-03-11 1997-08-25 株式会社東芝 Color picture tube equipment
JPH02106855A (en) 1988-10-13 1990-04-18 Nec Corp Electron gun for color picture tube
JP2928282B2 (en) 1989-09-06 1999-08-03 松下電子工業株式会社 Color picture tube equipment
JP2938476B2 (en) 1989-09-04 1999-08-23 松下電子工業株式会社 Color picture tube equipment
JP3053828B2 (en) 1990-02-08 2000-06-19 株式会社日立製作所 Color cathode ray tube
JP2678076B2 (en) 1990-03-29 1997-11-17 三菱電機株式会社 Color picture tube equipment
JP3599765B2 (en) 1993-04-20 2004-12-08 株式会社東芝 Cathode ray tube device
JPH076707A (en) 1993-06-21 1995-01-10 Matsushita Electron Corp Color picture tube device
JP3576217B2 (en) 1993-09-30 2004-10-13 株式会社東芝 Picture tube device
JPH07226170A (en) 1994-02-08 1995-08-22 Hitachi Ltd Electron gun for color cathode-ray tube
WO1995030997A2 (en) * 1994-05-10 1995-11-16 Philips Electronics N.V. Colour cathode ray tube comprising an in-line electron gun
JPH0822779A (en) 1994-07-06 1996-01-23 Sony Corp Electron gun for color cathode-ray tube
JP3324282B2 (en) 1994-07-11 2002-09-17 松下電器産業株式会社 Color picture tube equipment
TW272299B (en) 1994-08-01 1996-03-11 Toshiba Co Ltd
KR100386182B1 (en) 1994-10-24 2004-02-25 소니 가부시끼 가이샤 Electron gun of cathode ray tube and manufacturing method of cathode ray tube
DE19630200A1 (en) 1996-07-26 1998-01-29 Aeg Elektronische Roehren Gmbh cathode ray tube
US5905332A (en) * 1997-09-03 1999-05-18 Samsung Display Devices Co., Ltd. Electron gun for color cathode ray tube

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3286113A (en) * 1961-11-20 1966-11-15 Rca Corp Cathode ray tube
GB1195598A (en) * 1967-01-14 1970-06-17 Sony Corp Cathode Ray Tube
US3638065A (en) * 1968-12-24 1972-01-25 Victor Company Of Japan Color television picture-reproducing device
US4760308A (en) * 1980-10-03 1988-07-26 Hitachi, Ltd. Electron gun for color picture tubes
GB2227911A (en) * 1988-12-10 1990-08-08 Ferranti Int Signal CRT brightness enhanced by multiple beams

Also Published As

Publication number Publication date
JPH1167121A (en) 1999-03-09
US6201345B1 (en) 2001-03-13
CN1209640A (en) 1999-03-03
KR100268704B1 (en) 2000-10-16
EP0899767A2 (en) 1999-03-03
TW381288B (en) 2000-02-01
KR19990023860A (en) 1999-03-25
CN1244129C (en) 2006-03-01

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